Answer:
6
Step-by-step explanation:
The two small triangles are congruent by SAS.
By CPCTC, x = 6.
Answer: 6
Answer:
x = -4.6
Step-by-step explanation:
<u>Step 1: Combine like terms
</u>
-46 = 3x + 7x
-46 = 10x
<u>Step 2: Divide both sides by 10
</u>
-46 / 10 = 10x / 10
<em>-4.6 = x
</em>
Answer: x = -4.6
Answer:
10, there will be 20 left open
Step-by-step explanation:
if each bus holds 42 students and there are 400 going then you need to divide 400 by 42, and then round up, to find how many seats will be left open, you take the answer and then multiply it by 42 and then subtract 400.
sorry for not putting my work last time.
Answer:
![\textbf{A. }x=2i\text{ or }x=-2i\\\\\textbf{B. }(x+2i)(x-2i)](https://tex.z-dn.net/?f=%5Ctextbf%7BA.%20%7Dx%3D2i%5Ctext%7B%20or%20%7Dx%3D-2i%5C%5C%5C%5C%5Ctextbf%7BB.%20%7D%28x%2B2i%29%28x-2i%29)
Step-by-step explanation:
The quadratic can be solved in a straightforward way:
![x^2+4=0\\\\x^2=-4\qquad\text{subtract 4}\\\\x=\pm\sqrt{-4}\qquad\text{take the square root}\\\\x=\pm2i\qquad\text{simplify}](https://tex.z-dn.net/?f=x%5E2%2B4%3D0%5C%5C%5C%5Cx%5E2%3D-4%5Cqquad%5Ctext%7Bsubtract%204%7D%5C%5C%5C%5Cx%3D%5Cpm%5Csqrt%7B-4%7D%5Cqquad%5Ctext%7Btake%20the%20square%20root%7D%5C%5C%5C%5Cx%3D%5Cpm2i%5Cqquad%5Ctext%7Bsimplify%7D)
This tells you that the solutions are ...
2i or -2i
__
For each root of "a", (x -a) is a factor. Thus the factors of the equation are ...
(x +2i)(x -2i)
Answer:
Oct.
Step-by-step explanation:
average = (72 + 83 + 95 + 77 + 88)/5 = 83